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opiesche · 01-01-13, 03:02 PM

OK, so I just connected a 1 Ohm resistor in series with one of the modules, then measured the voltage across the resistor as 0.08V.
Ohm's law says that

I = U/R

So that makes for 80mA of current through the module. The voltage across was only about 10V, which makes for about 0.8W for that module. This was for a cool white with ~10000K color temperature because that's what I had laying around

The warm white have on the order of 3000K color temperature, and I anticipate them drawing a little, but not significantly less current. Looks like the specs aren't too far off - tolerances notwithstanding, it seems 0.7W is pretty close for the warm white LEDs.

01-01-13, 03:02 PM	#9
opiesche Helper EcoRenovator Join Date: Jul 2012 Location: Rohnert Park, CA Posts: 99 Thanks: 4 Thanked 14 Times in 9 Posts	OK, so I just connected a 1 Ohm resistor in series with one of the modules, then measured the voltage across the resistor as 0.08V. Ohm's law says that I = U/R So that makes for 80mA of current through the module. The voltage across was only about 10V, which makes for about 0.8W for that module. This was for a cool white with ~10000K color temperature because that's what I had laying around The warm white have on the order of 3000K color temperature, and I anticipate them drawing a little, but not significantly less current. Looks like the specs aren't too far off - tolerances notwithstanding, it seems 0.7W is pretty close for the warm white LEDs.